Hinge.



IND-(743,279.

PATENTED NOV. 3, 1903. A. C. HAYGOGK HINGE.

' urmoumn Hum MAY 29. 1903.

B0 MODEL,

WITNESSES UNITED STATES- Patented November 3, 1903.

. PATENT OFFICE.

ALBERT CHARLES HAYCOCK, OF SPARKHILL, NEAR BIRMINGHAM, EN G LAND, ASSIGNOR TO HOSKINS AND SEWELL, LIMITED, OE BORDESLEY,

BIRMINGHAM, ENGLAND.

HINGE.

SPECIFICATION forming part of Letters Patent No. 743,279, dated November 3, 1993.

Application filed May 29, 1903- To all whom it may concern.-

Be it known that I, ALBERT CHARLES HAY- COCK, works manager, a subject of the King of Great Britain, residing at Oak Dene, 30 Oakwood road, Sparkhill, near Birmingham, England, have invented certain new and useful Improvements in Hinges, of which the following is a specification.

This invention has relation to door and anal ogous hinges, and particularly to hinges for railway-carriage and like doors of that particular type which are made of two separable parts to admit of the doors being lifted ofI" the fixed parts of the hinges at will in any position and in which a fixed stalk or pin is carried by the knuckle of the lower flap.

The object of the present invention is to increase the wearing properties of such hinges and to construct same in such a manner that the knuckle of the top flap will take its bearing upon a collar or similar abutment formed upon the fixed pin (which is made of steel) and sunken below the surface of the top end of the knuckle on the bottom flap. With a hinge constructed for the purpose of attaining this object the opposed faces of the ends of the knuckle are prevented from coming into actual contact when the two parts of the hinge are together and all bearing thrust is borne by the hinge-pin. V

Figure l of the accompanying drawings represents an elevation, with portions in section, of a door-hinge embodying the improvements. This View shows the two parts of the hinge separated or detached. Fig.2 shows the same parts in edge view with portions in section. Fig. 3 is another view in which the knuckles and hinge-pin are represented in vertical section and the two parts are engaged or connected to one another. Fig. 4 isasectional View of Fig. 3 upon the dotted line'x. Figs. 5 and 6 show plan views of the removable flap or section and the fixed flap, respectively.

The same letters of reference'indicate corresponding parts in the several figures of the drawings.

In carrying out the invention the halfknuckle a of the fixed hinge-flap a-i. e., the

flap which is designed to be secured to the door-frame is formed in the usual way, with Serial No. 159,371. (No model.)

an axial hole a? to receive the extending part c of the hinge pin or stalk c, and at the entrance to the hole is an extended bearing-col lar or annular dowel d of suitable depth, this collar or dowel being preferably formed integral with or of the same metal (usually brass) as the body of' the flap and knuckle. The knuckle b of the other flap b, which is designed to be secured to the door, carries the fixed hinge-pin c, and the latter has a collar or abutment 0 formed around it and which when in position is located at the bottom of asocket or circular depression 6, formed in the top end of the said knuckle. This socket when the collar is in place therein is of slightly less depth than the annular dowel or bearing-ring d of the first-named flap, so that when the two parts of the hinge are brought together, with the hollow knuckle of the one taking over or receiving the fixed pin or stalk of the other, the dowel extension of the former seats in the socket of the latter and takes its bearing upon the set-down steel collar at the bottom thereof, and owing to the said dowel being slightly deeper than the socket the opposed ends of the two knuckles are kept out of frictional contact, as shown in Figs. 3 and 4, and by being thus relieved of the weight of the door the wear at these parts is greatlyreduced. The dowel turns within the socket of the upper knuckle, and by thus increasing the bearing-surfaces the motion of the hinge is steadied.

The flaps with integral knuckles are preferably made from wrought or rolled brass of section corresponding to that of the knuckle and flap body, and half of the knuckle part of each flap is removed by milling or otherwise to provide the necessary clearance for the reception of the corresponding knuckle of the other flap.

Having fully described my invention, what I desire to claim, and secure by Letters Patent, is-

A hinge comprising the separable flaps a and b, the former of which is fixed and the latter movable, the knuckle of the movable "flap having fixed therein a hinge-pin c and having an annular socket in its lower end concentric with said pin, and the knuckle of the other flap having an axial socket a in annular socket and height of the dowel being which the lower end of the hinge-pin is rotasuch that the adjacent ends of the knuckles tablyand removably journaled, acollar c on are held out of frictional contact, substanthehinge-pin seated in the said annular socket, and an annular dowel (1 formed on the upper end of the knuckle of the fixed flap fitting in the annular socket and forming a bearing on which the said collar is rotatably seated, whereby the movable flap may be separated from the fixed flap by a vertical movement irrespective of the relative positions of said flaps, the relative depth of the tially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

ALBERT CHARLES HAYCOOK.

Witnesses:

HENRY SKERRETT, IDA BEATRICE SoDEN. 

